EP4306980A1 - Bestimmung der b0-inhomogenität in der magnetresonanztomographie - Google Patents
Bestimmung der b0-inhomogenität in der magnetresonanztomographie Download PDFInfo
- Publication number
- EP4306980A1 EP4306980A1 EP22187466.2A EP22187466A EP4306980A1 EP 4306980 A1 EP4306980 A1 EP 4306980A1 EP 22187466 A EP22187466 A EP 22187466A EP 4306980 A1 EP4306980 A1 EP 4306980A1
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- European Patent Office
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- magnetic resonance
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Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/243—Spatial mapping of the polarizing magnetic field
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
- G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2023/068477 WO2024012947A1 (en) | 2022-07-12 | 2023-07-05 | Determiniaton of bo inhomogenity in magnetic resonance imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202263388384P | 2022-07-12 | 2022-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4306980A1 true EP4306980A1 (de) | 2024-01-17 |
Family
ID=82780752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22187466.2A Pending EP4306980A1 (de) | 2022-07-12 | 2022-07-28 | Bestimmung der b0-inhomogenität in der magnetresonanztomographie |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP4306980A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3889634A1 (de) * | 2020-04-01 | 2021-10-06 | Koninklijke Philips N.V. | Reduzierung von off-resonanz-effekten in der magnetresonanzbildgebung |
-
2022
- 2022-07-28 EP EP22187466.2A patent/EP4306980A1/de active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3889634A1 (de) * | 2020-04-01 | 2021-10-06 | Koninklijke Philips N.V. | Reduzierung von off-resonanz-effekten in der magnetresonanzbildgebung |
| WO2021197955A1 (en) | 2020-04-01 | 2021-10-07 | Koninklijke Philips N.V. | Reduction of off-resonance effects in magnetic resonance imaging |
Non-Patent Citations (4)
| Title |
|---|
| DAVID Y ZENG ET AL: "Deep Learning Method for Non-Cartesian Off-resonance Artifact Correction", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, ISMRM, JOINT ANNUAL MEETING ISMRM-ESMRMB, PARIS, FRANCE, 16-21 JUNE 2018, no. 428, 1 June 2018 (2018-06-01), XP040699636 * |
| MELISSA W HASKELL ET AL: "FieldMapNet MRI: Learning-based mapping from single echo time BOLD fMRI data to fieldmaps with model-based image reconstruction", PROCEEDINGS OF THE JOINT ANNUAL MEETING ISMRM-ESMRMB 2022 & ISMRT ANNUAL MEETING, LONDON, UK, 07-12 MAY 2022, ISMRM, 2030 ADDISON STREET, 7TH FLOOR, BERKELEY, CA 94704 USA, no. 235, 22 April 2022 (2022-04-22), XP040726783 * |
| NOLL D C ET AL: "DEBLURRING FOR NON-2D FOURIER TRANSFORM MAGNETIC RESONANCE IMAGING", MAGNETIC RESONANCE IN MEDICINE, WILEY-LISS, US, vol. 25, no. 2, 1 June 1992 (1992-06-01), pages 319 - 333, XP000275016, ISSN: 0740-3194 * |
| QUAN DOU ET AL: "Automatic Off-Resonance Correction for Spiral Imaging with a Convolutional Neural Network", PROCEEDINGS OF THE JOINT ANNUAL MEETING ISMRM-ESMRMB 2022 & ISMRT ANNUAL MEETING, LONDON, UK, 07-12 MAY 2022, ISMRM, 2030 ADDISON STREET, 7TH FLOOR, BERKELEY, CA 94704 USA, no. 5022, 22 April 2022 (2022-04-22), XP040731570 * |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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